[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Conditional statements in DTD?
It's expressible using schematron, I'm fairly certain. Check http://www.schematron.com/ for info. K On 3/11/2009 2:55 PM, Pete Cordell wrote: > The limited specification abilities of DTDs is why XML schema was > developed. But even XSD schema 1.0 can't do what you want. XSD 1.1 > should be able to do it with an xs:assert statement, but that's still > being worked on. > > HTH, > > Pete Cordell > Codalogic Ltd > Interface XML to C++ the easy way using XML C++ > data binding to convert XSD schemas to C++ classes. > Visit http://codalogic.com/lmx/ for more info > ----- Original Message ----- From: "Graeme Kidd" > To: <xml-dev@l...> > Sent: Wednesday, March 11, 2009 6:15 PM > Subject: Conditional statements in DTD? > > > > > > Hi All, > > I am certain you cant use conditional statements within the DTD file so > is it possible to make an attribute valid only if a parent element had > an attribute set to something e.g. > > The 'StepTwo' element is valid as the 'allow' attribute in 'StepOne' is > set to 'yes' > > < root> > < StepOne allow="yes"> > < StepTwo playing="hard" > < / StepOne > < / root> > > The 'StepTwo' element is invalid as the 'allow' attribute in 'StepOne' > is set to 'no' > > < root> > < StepOne allow="no"> > < StepTwo playing="hard"> > < / StepOne > < / root> > > The 'StepTwo' element is valid because the 'allow' attribute is set to > 'no' and there is no attribute for Step Two. > > > < root> > < StepOne allow="no"> > < StepTwo> > < / StepOne > < / root> > > Surely things like this could be rather common? > > > > _________________________________________________________________ > View your Twitter and Flickr updates from one place – Learn more! > http://clk.atdmt.com/UKM/go/137984870/direct/01/ > _______________________________________________________________________ > > XML-DEV is a publicly archived, unmoderated list hosted by OASIS > to support XML implementation and development. To minimize > spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@l... > subscribe: xml-dev-subscribe@l... > List archive: http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php > > > > > _______________________________________________________________________ > > XML-DEV is a publicly archived, unmoderated list hosted by OASIS > to support XML implementation and development. To minimize > spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@l... > subscribe: xml-dev-subscribe@l... > List archive: http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php >
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